Lwm Molybdenum hlau Alloys muaj xws li:
- TZM Molybdenum – 99% NIAM, 0.5% rhawv, Thiab .0.08 ZIAB
- Molybdenum / 50% Rhenium
- Molybdenum / 30% Tungsten
- Molybdenum / Tooj
Machining Characteristics
Pressed thiab sintered los yog recrystallized molybdenum cav tov heev rau nruab nrab hlau. Wrought molybdenum cav tov heev rau stainless hlau. Molybdenum hlau machined nrog cov cuab yeej thiab khoom siv. Tiam sis muaj ib co kev uas molybdenum differs ntawm nruab nrab hlau nruab nrab hlau los yog txias kuav los tiag hlau:
- Nws muaj ib tug nyiam zom rau ntawm cov npoo thaum tej cuab yeej ua dull
- Nws yog abrasive heev. Qhov no ua rau cov cuab yeej hnav sai dua hlau
Khaub Lig
Corrosion Molybdenum kuj zoo ib yam li tungsten. Molybdenum tshwj xeeb tshaj yog resists uas tsis yog-oxidizing acids. Nws kuj inert kuj intert rau carbon dioxide, cov nitrogen thiab nitrogen 1100 C thiab kuj nyob hauv txo cov cua uas muaj sulfide hydrogen sulfide. Molybdenum muaj excellent kuj yuav corrosion ntawm iodine vapor, ua lag ua luam, thiab tshuaj chlorine, txwv kom meej meej txwv. Nws kuj muaj cov kuj zoo kawg li rau tej kua xws lithium, bismuth, nruab nrab thiab potassium.
Xa thiab Milling
Rau sab nraum thiab sab nraum txoj sab nraum zoov, Cov cuab yeej yuav tsum muab av rau cov kaus poom thiab rakes zoo li cas siv rau nrum iron. Speeds rau 200 taw, muaj ib lub qhov tob ntawm tej qhov nqaij ntuag 1/8", ntxhib. Yuav tsum noj pub rau noj .015 i.p.r. Rau qhov xaus, tsuj 400 taw, qhov tob .005"raug" .015", pub .005"raug" .010yuav tsum siv. Nws yog ib qho tseem ceeb heev, txoj siav, qhov tob ntawm cov ntuag ib txwm muaj ntau dua .005". Yog hais tias qhov tob ntawd tsis tshua muaj, hnav yuav ris tsho tshaj. Sulphur raws li tej roj yuav siv tau ua ib tug rau ntxhib ntxhib, Thiab kerosene los yog sulphur puag tej roj yuav siv tau los ua hauj lwm tas. Yog tias tsis siv hnav ris tsho yuav ntev. Cov roj sulphur roj tsis siv rau hauv tshuab fais fab. Roj Chlorinated roj thiab cov solvents yog excellent ua ib machining ntsaws. Molybdenum nyhav nti thaum machined thiaj yuav tsum tau tiv thaiv qhov no. Ua hauj lwm yuav tsum tau nruj chucked, Cov cuab yeej rigidly txaus siab thiab cov cav tov yuav tsum muaj zog thiab tsis muaj chatter los yog backlash. Txaus coolant yog ib qho tseem ceeb. Ntsej muag milling hauv kev tsis pom zoo. Tiam sis, yuav ua li cas thaum tsim nyog. Cov tswv yim carbide tipped yuav tsum siv. Tus ceev thiab qhov tob ntawm qhov ntuag yuav tsum muaj ntsis zoo ib yam li cov neeg siv hauv txoj siav, tshwj tias qhov tob ntawm qhov tob yuav tsum tsis pub tshaj .050". Molybdenum plates yuav tau ntug machined. Nws pom zoo tias daim hlau ntau dua .050"Yuav tsum tau ntug machined es sheared rau koj dimensions tas. Qhov no yuav ua tau xws li ntawm ib shaper los yog ib lub tshuab milling, thiab lub tshuab yuav tsum tau ua raws li cov ntug, es hla lub ntug. Tus molybdenum yuav tsum nws clasped thaum hlau thaum machined kom tsis txhob chipping.
drilling, Tapping thiab Threading
Molybdenum yuav tau drilled nrog high speed hlau drills. Tiam sis, Cov tshuaj carbills yuav pom zoo rau kev sib sib zog ntxuav tais diav. Thaum siv hlau speed hlau drills, qhov ncauj yuav tsum tau 30 ntsaub 50 taw ib pliag .003 i.p.r. Yuav tsum siv cov roj yuav tsum siv rau tag nrho cov tapping, drilling thiab xyaum ua haujlwm. Thaum xov tooj txawb tuag yuav tsum tsis txhob ua ntau tshaj 50 ntsaub 60 feem pua vim molybdenum nyiam nti, Molybdenum yuav tau kuav los tiag. Cov khoom molybdenum thiab tus tuag yuav tsum tau muab kho kom zoo 325 degrees F. Molybdenum yuav tau tshav kub kub rau 325 Degrees F nyob rau tej huab cua tsis phom sij ntawm oxidation. Tiam sis, Molybden tsev cia puav pheej tsis cua sov kub saum toj no 500 Degrees F tshwj nyob hydrogen los yog lwm cov cua atmospheres.
viav vias
Molybdenum pom yooj yim nrog fais fab tuav pom thiab hacksaws. Kwv yees li ntawm 1/8" yuav tsum pub kom tas 3/16" rau cov koob yees duab hnyav zog. Molybdenum kuj yuav tau abrasive pom ntuag. Cov hniav zoo tshaj plaws yog siab ceev hniav uas tsuas hniav tsuas kob.
EDM & ECM
Ob yam ntawm cov txheej txheem ua hauj lwm zoo thaum ua hauj lwm nrog molybdenum. Tshuag tshem tawm cov nqi ntawm mus txog .5 hauv(3)/mintsis thiab +/- .0005"kam rau ua tau tiav nrog EDM. EDM hlau tej hlau tej qhov nqaij ntuag uas siv rau intricate shapes. Electrochemical machining yog ib txwm muaj peev xwm sawv 1 hauv(3) /Tshuag tshem tawm ntawm 10,000 amps. ECM yog tshwj xeeb tshaj yog
Ua tau zoo uas yuav ua tau ultra-finishes.
khoov
Heated kom molybdenum yuav tau ua rau kom txoj phuam. Daim ntawv uas nyob rau hauv qab .020 Nti yuav siv sij hawm 180 khoov txias.
Welding
Pure molybdenum yog leej twg nyob rau hauv ntau ntau tib yam li tungsten. Nws yeej yuav tsum tau koom nyob rau hauv ib lub high purity atmosphere tom qab ib txoj kev koom tes nrog kev tu cov txheej txheem kev. Yog hais tias nws yuav tau TSOV welded, khiav tawm tabs yuav tsum tau utilized los tiv thaiv kev ua qab phem cracking kawg ntawm txhua kis thaum welding. DCEN polarity siv thiab tso zis tso zis cia tsawg kawg yog yam tsawg kawg nkaus. Tom qab welding, Cov ntaub ntawv yuav raug tawg lossis dam relieved los restore ductility. Ncej grinding kom tshem tawm tau ripples thiab qhov chaw uas muaj kab mob yuav pab kho tau kom zoo nkauj. Yog molybdenum pure molybdenum muaj nyob rau hauv cov cua qhib atmosphere, nitrogen thiab cov pa yuav Absorbed nyob rau hauv quantities txaus ua brittleness hauv lub HAZ thiab tom ob leeg tsis ua hauj lwm.
